Speed-integrating mechanism and the like



K. T. F. JUNG AND G. H. PETERSSON.

SPEED INTEGRATING MECHANISM AND THE LIKE.

APPLICATION FILED DEC. 1. 191 3. RENEWED APR.'29. 1919.

l ,4: 1 6,2 1 O Patented May 16, 1922.

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Specification of Letters Patent. Paijent d M 16 1922 Application area December 1, 1 s1s,'ser1a1 No. 804,078. Renewed A ril at, 1919. Serial No. 298,440}.

ferential-manometers with Bourdon-tube or plane membrane-have with normal dimensions too little capacity and furthermore they do not give a deflection exactly proportional to the pressure. This is because the integrating mechanism requires a great deal of work to drive it as compared with the .work needed for turning or rotating a pointer or needle, and in order that the. errors shall not be noticeable the power consumed bythe integrating mechanism must be relatively small compared with the capacity of the driving device, from which it will be evident that the manometer pressure must be magnified for use with integrating mechanism. v v

. The presentinvention is accordingly illustrated in the accompanying drawing, in which Fig. 1 is a front view of an apparatus embodying my invention and Fig. 2 isa side.

view of certain parts shown in Fig. 1. Referring more particularly to the drawing, two soft cylindrical bellows A and B are provided, which bellows have movable bottoms C and D, connected with each other through a rod E, the pressure difference being taken up by an adjustable spring F. By this means it is possib e to give the bellows bottoms a great stroke and in this manner with moderate bellows diameter receive great capacity of work. The bellows A is in connection with the Pitot conduit and the bellows B with the balancing conduit according to an arrangement previously known in this art. The ressure difference acting upon the rod E an therefore also the movement of this rod will be proportional to the square of the speed .of the ship. This movement is suitabl transferred in enlarged scale toa rack H movable parallel to the rod E. NVhen statin the distance i. e. integrating the speed in regard to the time, the movement of KARI. TORSTEN the rod l-I, proportional the square of the speed ,is transformed to a movement whichis' proportional to the speed itself. This is effected with the cam wheel K which is rotated by the cog-wheel I and acts with the aid of the pressure roll L upon the rod M. The

equation of the cam curve, expressed in polar coordinates and on the presumption that the diameter of the roll is small, is then where '1', and 7c are constants. a cansuitably vary between 0 and 11'', when the speed of the shipgoes from o to maximum. The rod M is movable in a vertical direction in a frame turnable onthe taps N andcarrying the rotating shaft-P, on which the V at right angles thereto and the'arm V 0011- I nects with the shaft P by means of a pin and slot connection permittlng the shaft to revolve whereby the movement of the wheel R on the mantle face of the'cone with aid of the arm V is efl'ected by the rod M, being so adjusted, that the same when the ship is '1 standing rests against the point of the cone, the movement of the wheel R along'the cone and therefore also its revolutions per minute will be prolportional to the speed of the ship.

- transfers with aid of the conical The shaft gear W the rotation of the wheel R toa calculating work X of the common stroke tellertype with zero adjusting mechanism. This calculating work shows then the performed distance in knots or miles.

From the rod M movable proportionally to the speed the movement may be transmitted by any suitable means to the pointer 7, indicating the speed of the ship. The movement of the bellows A and B is transmitted from the rod E to the rack v H bymeans of a floating lever G which,

is pivotally connected to the rack H and which has a pin and slot connection with the rod E. The lower end of the lever G is pivoted at y to a short spring sup oljted rod y, the spring supporting the ro 3 being held in place by a nut Z:

It will be understood that throughoutthe claims appended hereto, the words indicator and indicating are usedin a broad sense to include registering means and also to include recording means.

Having now particularly performed and ascertained the nature of our said invention and in what manner the same is to be performed We declare that what we claim is:

1. The combination in pressure responsive devices for ships, of a pair of bellows, a rod common to both bellows, a rack parallel to said rod, a driving member intermediate said rod and rack, resilient means secured to one of said bellows adapted to compensate pressure difierences, indicating means and operative connections between said rack and indicating means, substantially as described- 2. A pressure responsive mechanism comprising in combination two coaxial bellows each having a fixed and a movable bottom, an indicator, and connections betweensaid bellows and said indicator comprising a rod connecting the movable bottoms of said bellows, a rack parallel with said rod, and a 25 floating lever intermediate said rod and said rack for transmitting motion from the rod directly to the rack.

In testimony whereof we have signed our names to this specification in the presence of 30 two subscribing witnesses.

KARL TQIVRSTEN FREDRIK JUNE.

Witnesses AXEL RUNN UIST, A. LIDENAU.

GUSTAIF HENRHK PETERSSON. Witnesses:

JoHAN NEUBAUM, Gram PRIM. 

